EP1427105A3 - Générateur d'impulsions modulées en largeur - Google Patents

Générateur d'impulsions modulées en largeur Download PDF

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Publication number
EP1427105A3
EP1427105A3 EP03300243A EP03300243A EP1427105A3 EP 1427105 A3 EP1427105 A3 EP 1427105A3 EP 03300243 A EP03300243 A EP 03300243A EP 03300243 A EP03300243 A EP 03300243A EP 1427105 A3 EP1427105 A3 EP 1427105A3
Authority
EP
European Patent Office
Prior art keywords
signal
scie
dent
generator
sawtooth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03300243A
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German (de)
English (en)
Other versions
EP1427105A2 (fr
Inventor
Arnaud Florence
Jérôme HEURTIER
Franck Galtie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics SA
Original Assignee
STMicroelectronics SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by STMicroelectronics SA filed Critical STMicroelectronics SA
Publication of EP1427105A2 publication Critical patent/EP1427105A2/fr
Publication of EP1427105A3 publication Critical patent/EP1427105A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation

Landscapes

  • Dc-Dc Converters (AREA)
  • Manipulation Of Pulses (AREA)
  • Amplifiers (AREA)

Abstract

L'invention concerne un générateur d'au moins un signal (PWM) d'impulsions modulées en largeur comportant :
  • un générateur (31) d'un signal en dent de scie (SLOPE) ;
  • un générateur (36) de signaux de référence haut (S+) et bas (S-) définissant, à partir d'un signal de consigne (ERR ; Vdc), une plage linéaire de chaque rampe du signal en dent de scie ;
  • au moins un élément de comparaison (34, 35) du signal en dent de scie avec chacun des signaux de référence ; et
  • au moins un élément de combinaison logique (41) des résultats de comparaison, fournissant le signal d'impulsions.
    • Figure 00000001
    EP03300243A 2002-12-04 2003-12-02 Générateur d'impulsions modulées en largeur Withdrawn EP1427105A3 (fr)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0215321A FR2848359A1 (fr) 2002-12-04 2002-12-04 Generateur d'impulsions modulees en largeur
    FR0215321 2002-12-04

    Publications (2)

    Publication Number Publication Date
    EP1427105A2 EP1427105A2 (fr) 2004-06-09
    EP1427105A3 true EP1427105A3 (fr) 2005-06-22

    Family

    ID=32310004

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03300243A Withdrawn EP1427105A3 (fr) 2002-12-04 2003-12-02 Générateur d'impulsions modulées en largeur

    Country Status (3)

    Country Link
    US (1) US6920054B2 (fr)
    EP (1) EP1427105A3 (fr)
    FR (1) FR2848359A1 (fr)

    Families Citing this family (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US6686862B1 (en) * 2003-02-21 2004-02-03 National Semiconductor Corporation Apparatus and method for duty cycle conversion
    US7078942B2 (en) * 2004-03-18 2006-07-18 Hon Hai Precision Ind. Co., Ltd. Driving apparatus for generating a driving current using PWM
    FR2868577A1 (fr) * 2004-03-31 2005-10-07 St Microelectronics Sa Dispositif de detection d'attaque d'une puce de circuit integre
    JP4366335B2 (ja) * 2005-05-10 2009-11-18 パナソニック株式会社 昇圧コンバータ
    JP4781744B2 (ja) * 2005-08-05 2011-09-28 ローム株式会社 電源装置及びこれを用いた電気機器
    JP2007129841A (ja) * 2005-11-04 2007-05-24 Toshiba Corp 電源回路および半導体集積装置
    DE102006013000A1 (de) * 2006-03-22 2007-09-27 Conti Temic Microelectronic Gmbh Verfahren und Anordnung zum digitalen Übermitteln eines analogen Messsignals
    TWI405162B (zh) * 2009-12-28 2013-08-11 Au Optronics Corp 閘極驅動電路
    DE102010011468B4 (de) * 2010-02-23 2013-04-04 Technische Universität Ilmenau Verfahren und Schaltungsanordnung zur Transformation eines HF-Signals bei der Bandpass-Pulslängenmodulation
    GB201222882D0 (en) 2012-12-19 2013-01-30 Univ Leeds Ultrasound generation
    KR20170073499A (ko) * 2015-12-18 2017-06-28 페어차일드코리아반도체 주식회사 기준 전압 생성기 및 이를 포함하는 led 장치

    Citations (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US5198785A (en) * 1992-05-29 1993-03-30 Analog Devices, Inc. Dual edge pulse width modulation system
    US5541543A (en) * 1992-01-29 1996-07-30 Sgs-Thomson Microelectronics S.A. Regulating device for a telephone loud-speaker

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US5162987A (en) * 1990-12-28 1992-11-10 Leslie Controls, Inc. Controller which uses pulse width and pulse frequency modulated signals to control a variable
    DE19837153A1 (de) * 1998-08-17 2000-03-02 Micronas Intermetall Gmbh Pulsweitenmodulierter Gleichspannungswandler
    TW538589B (en) * 2001-07-13 2003-06-21 Delta Electronics Inc Volt-second clamping circuit power supplier

    Patent Citations (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US5541543A (en) * 1992-01-29 1996-07-30 Sgs-Thomson Microelectronics S.A. Regulating device for a telephone loud-speaker
    US5198785A (en) * 1992-05-29 1993-03-30 Analog Devices, Inc. Dual edge pulse width modulation system

    Also Published As

    Publication number Publication date
    EP1427105A2 (fr) 2004-06-09
    US6920054B2 (en) 2005-07-19
    FR2848359A1 (fr) 2004-06-11
    US20040119452A1 (en) 2004-06-24

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